？ 1992 　Passed 34^th National Bar Exam, South Korea

？ 1995.3 - 1998.8 Public prosecutor in Seoul, Suwon, Yeoju and Busan

？ 2000.5 - 2004.4 Member of 16th National Assembly, South Korea

？ 2004.5 - 2008.4 Member of 17th National Assembly, SouthKorea

？ 2004Young Global Leader at World Economic Forum

？ 2008.5 - 2012.4 　Member of 18th National Assembly, South Korea

？ 2008.10 Chairman of Low Carbon Green Growth National Forum

？ 2009.5 Chairman of the Special Renovation Committee in Grand National Party (the ruling party)

？ 2010.6 Chairman of Committee for Foreign Affairs, Trade, and Unification, National Assembly

？ 2010.7 Secretary General, Grand National Party (the ruling party)

？ 2011.6Supreme Council, Grand National Party

？ 2014. 7  　 37th Governor of Jeju Special Self-Governing Province

？ 2014. 9  President of UCLG ASPAC